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Finding the Fourth Proportional to 610,845.63, 843,013.22 and 338,964.96

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Solution

The fourth proportional to 610,845.63, 843,013.22 and 338,964.96 is: 467,797.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,845.63 : 843,013.22 = 338,964.96 : x
  2. Step 2: Convert to fraction form
    610,845.63/843,013.22 = 338,964.96/x
  3. Step 3: Cross multiply
    610,845.63x = 843,013.22 × 338,964.96
  4. Step 4: Simplify right side
    610,845.63x = 285,751,940,701.95
  5. Step 5: Solve for x
    x = 285,751,940,701.95/610,845.63
  6. Step 6: Final answer
    x = 467,797.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.